Dear friends, today I would like to talk to you about one very serious topic: becoming a good LaTeX user. I say this as someone who definitely had to go through a painful conversion process. I now shall confess my sins: I used to ignore LaTeX errors when they didn’t seem to affect the output (meaning there would be PDF output, no fatal error stopping LaTeX from compiling, plus maybe no overly visible problems). I shudder to confess it now but: Nonstopmode was my best friend. To spare you, my friends, from following me down this path of vice and misery, I want to bring up the subject of good LaTeX conduct today. Read error messages, then ACT ON THEM At least try to figure out what’s going on. If you make this a habit, you will not only learn a lot and actively get better at LaTeX with all the (hopefully not totally fruitless) online research you’ll be doing.